Enter a year to find out it’s leap year or not !
Explanation about the formula: http://www.infoplease.com/spot/leapyear1.html
#include<stdio.h> int main() { int year,remainder_4,remainder_100,remainder_400; printf("Enter your year:\n"); scanf("%d",&year); remainder_4=year%4; remainder_100=year%100; remainder_400=year%400; if((remainder_4==0&&remainder_100!=0)||(remainder_400==0)) printf("It's leap year"); else printf("It's not leap year"); return 0; }